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Seasonal Growth and Senescence of a Zostera marina Seagrass Meadow Alters Wave-Dominated Flow and Sediment Suspension Within a Coastal Bay

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Abstract

Tidally driven flows, waves, and suspended sediment concentrations were monitored seasonally within a Zostera marina seagrass (eelgrass) meadow located in a shallow (1–2 m depth) coastal bay. Eelgrass meadows were found to reduce velocities approximately 60 % in the summer and 40 % in the winter compared to an adjacent unvegetated site. Additionally, the seagrass meadow served to dampen wave heights for all seasons except during winter when seagrass meadow development was at a minimum. Although wave heights were attenuated across the meadow, orbital motions caused by waves were able to effectively penetrate through the canopy, inducing wave-enhanced bottom shear stress (τ b ). Within the seagrass meadow, τ b was greater than the critical stress threshold (=0.04 Pa) necessary to induce sediment suspension 80–85 % of the sampling period in the winter and spring, but only 55 % of the time in the summer. At the unvegetated site, τ b was above the critical threshold greater than 90 % of the time across all seasons. During low seagrass coverage in the winter, near-bed turbulence levels were enhanced, likely caused by stem–wake interaction with the sparse canopy. Reduction in τ b within the seagrass meadow during the summer correlated to a 60 % reduction in suspended sediment concentrations but in winter, suspended sediment was enhanced compared to the unvegetated site. With minimal seagrass coverage, τ b and wave statistics were similar to unvegetated regions; however, during high seagrass coverage, sediment stabilization increased light availability for photosynthesis and created a positive feedback for seagrass growth.

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References

  • Abdelrhman, M.A. 2003. Effect of eelgrass Zostera marina canopies on flow and transport. Marine Ecology Progress Series 248: 67–83.

    Article  Google Scholar 

  • Ackerman, J.D., and A. Okubo. 1993. Reduced mixing in a marine macrophyte canopy. Functional Ecology 7: 305–309.

    Article  Google Scholar 

  • Benilov, A.Y., and B.N. Filyushkin. 1970. Application of methods of linear filtration to an analysis of fluctuations in the surface layer of the sea. Izvestya, Atmospheric and Oceanic Physics 6: 810–819.

    Google Scholar 

  • Bouma, T.J., M. Friedrichs, P. Klaassen, B.K. van Wesenbeek, F.G. Brun, S. Temmerman, M.M. van Katwijk, G. Graf, and P.M.J. Herman. 2009. Effects of shoot stiffness, shoot size and current velocity on scouring sediment from around seedlings and propagules. Marine Ecology Progress Series 388: 293–297.

    Article  Google Scholar 

  • Bradley, K., and C. Houser. 2009. Relative velocity of seagrass blades: implications for wave attenuation in low-energy environments. Journal of Geophysical Research 114: F01004. doi:10.1029/2007JF000951.

    Article  Google Scholar 

  • Bricker, J.D., and S.G. Monismith. 2007. Spectral wave-turbulence decomposition. Journal of Atmospheric and Oceanic Technology 24: 1479–1487.

    Article  Google Scholar 

  • Bryan, K.R., H.W. Tay, C.A. Pilditch, C.J. Lundquist, and H.L. Hunt. 2007. The effects of seagrass (Zostera muelleri) on boundary-layer hydrodynamics in Whangapoua Estuary, New Zealand. Journal of Coastal Research SI50: 668–672.

    Google Scholar 

  • Carr, J., P. D’Odorico, K. McGlathery, and P. Wiberg. 2010. Stability and bistability of seagrass ecosystems in shallow coastal lagoons: role of feedbacks with sediment resuspension and light attenuation. Journal of Geophysical Research 115: G03011. doi:10.1029/2009JG001103.

    Article  Google Scholar 

  • Carr, J.A., P. D’Odorico, K.J. McGlathery, and P.L. Wiberg. 2012. Modeling the effects of climate change on eelgrass stability and resilience: future scenarios and leading indicators of collapse. Marine Ecology Progress Series 448: 289–301.

    Article  Google Scholar 

  • Chen, Q., H. Zhao, K. Ju, and S.L. Douglass. 2005. Prediction of wind waves in a shallow estuary. Journal of Waterway, Port, Coastal, and Ocean Engineering 131: 137–148.

    Article  Google Scholar 

  • Chen, S., L.P. Sanford, E.W. Koch, F. Shi, and E.W. North. 2007. A nearshore model to investigate the effects of seagrass bed geometry on wave attenuation and suspended sediment transport. Estuaries and Coasts 30(2): 296–310.

    Article  Google Scholar 

  • de Boer, W.F. 2007. Seagrass–sediment interactions, positive feedbacks and critical thresholds for occurrence: a review. Hydrobiologia 591: 5–24.

    Article  Google Scholar 

  • Dean, R.G., and R.A. Dalrymple. 1991. Water wave mechanics for engineers and scientists. Singapore: World Scientific.

    Google Scholar 

  • Duarte, C.M. 1991. Seagrass depth limits. Aquatic Botany 40: 363–377.

    Article  Google Scholar 

  • Fagherazzi, S., and P.L. Wiberg. 2009. Importance of wind conditions, fetch and water levels on wave-generated shear stresses in shallow intertidal basins. Journal of Geophysical Research 114: F03022. doi:10.1029/2008JF001139.

    Article  Google Scholar 

  • Fonseca, M.S., and J.S. Fisher. 1986. A comparison of canopy friction and sediment movement between four species of seagrass with reference to their ecology and restoration. Marine Ecology Progress Series 29: 15–22.

    Article  Google Scholar 

  • Fonseca, M.S., and M.A.R. Koehl. 2006. Flow in seagrass canopies: the influence of patch width. Estuarine, Coastal and Shelf Science 67: 1–9.

    Article  Google Scholar 

  • Gacia, E., and C.M. Duarte. 2001. Sediment retention by a Mediterranean Posidonia oceanica meadow: the balance between deposition and resuspension. Estuarine, Coastal and Shelf Science 52: 505–514.

    Article  Google Scholar 

  • Gacia, E., T.C. Granata, and C.M. Duarte. 1999. An approach to measurement of particle flux and sediment retention within seagrass (Posidonia oceanica) meadows. Aquatic Botany 65: 255–268.

    Article  Google Scholar 

  • Gambi, M.C., A.R.M. Nowell, and P.A. Jumars. 1990. Flume observations on flow dynamics in Zostera marina (eelgrass) beds. Marine Ecology Progress Series 61: 159–169.

    Article  Google Scholar 

  • Ghisalberti, M., and H. Nepf. 2006. The structure of the shear layer in flows over rigid and flexible canopies. Environmental Fluid Mechanics 6: 277–301.

    Article  Google Scholar 

  • Granata, T.C., T. Serra, J. Colomer, X. Casamitjana, C.M. Duarte, and E. Gacia. 2001. Flow and particle distributions in a nearshore seagrass meadow before and after a storm. Marine Ecology Progress Series 218: 95–106.

    Article  Google Scholar 

  • Grant, W.D., and O.S. Madsen. 1979. Combined wave and current interaction with a rough bottom. Journal of Geophysical Research 84: 1797–1808.

    Article  Google Scholar 

  • Gruber, R.K., and W.M. Kemp. 2010. Feedback effects in a coastal canopy-forming submersed plant bed. Limnology and Oceanography 55(6): 2285–2298.

    Article  CAS  Google Scholar 

  • Hansen, J.C.R., and M.A. Reidenbach. 2012. Wave and tidally driven flows in eelgrass beds and their effect on sediment suspension. Marine Ecology Progress Series 448: 271–287.

    Article  Google Scholar 

  • Jing, L., and P.V. Ridd. 1996. Wave-current bottom shear stresses and sediment resuspension in Cleveland Bay, Australia. Coastal Engineering 29: 169–186.

    Article  Google Scholar 

  • Kaimal, J., and J. Finnigan. 1994. Atmospheric boundary layer flows: their structure and measurement. New York: Oxford University Press.

    Google Scholar 

  • Koch, E.W., and G. Gust. 1999. Water flow in tide- and wave-dominated beds of the seagrass Thalassia testudinum. Marine Ecology Progress Series 184: 63–72.

    Article  Google Scholar 

  • Koch, E.W., J.D. Ackerman, J. Verduin, and M. van Keulen. 2006. Fluid dynamics in seagrass ecology—from molecules to ecosystems. In Seagrasses: biology, ecology and conservation, ed. A.W.D. Larkum, R.J. Orth, and C. Duarte, 193–225. Amsterdam: Springer.

    Google Scholar 

  • Lacy, J.R., and S. Wyllie-Echeverria. 2011. The influence of current speed and vegetation density on flow structure in two macrotidal eelgrass canopies. Limnology and Oceanography: Fluids and Environments 1: 38–55.

    Google Scholar 

  • Lawson, S.E., P.L. Wiberg, K.J. McGlathery, and D.C. Fugate. 2007. Wind-driven sediment suspension controls light availability in a shallow coastal lagoon. Estuaries and Coasts 30(1): 102–112.

    Article  Google Scholar 

  • Lawson, S.E., K.J. McGlathery, and P.L. Wiberg. 2012. Enhancement of sediment suspension and nutrient flux by benthic macrophytes at low biomass. Marine Ecology Progress Series 448: 259–270.

    Article  Google Scholar 

  • Lowe, R.J., J.R. Koseff, and S.G. Monismith. 2005. Oscillatory flow through submerged canopies: 1. Velocity structure. Journal of Geophysical Research 110: C10016. doi:10.1029/2004JC002788.

    Article  Google Scholar 

  • Lu, S.S., and W.W. Willmarth. 1973. Measurements of the structure of the Reynolds stress in a turbulent boundary layer. Journal of Fluid Mechanics 60: 481–571.

    Article  Google Scholar 

  • Luhar, M., J. Rominger, and H. Nepf. 2008. Interaction between flow, transport and vegetation spatial structure. Environmental Fluid Mechanics 8: 423–439.

    Article  Google Scholar 

  • Luhar, M., S. Coutu, E. Infantes, S. Fox, and H. Nepf. 2010. Wave-induced velocities inside a model seagrass bed. Journal of Geophysical Research 115: C12005. doi:10.1029/2010JC006345.

    Article  Google Scholar 

  • McGlathery, K., I.C. Anderson, and A.C. Tyler. 2001. Magnitude and variability of benthic and pelagic metabolism in a temperate coastal lagoon. Marine Ecology Progress Series 216: 1–15.

    Article  CAS  Google Scholar 

  • Moore, K.A., R.J. Orth, and J.F. Nowak. 1993. Environmental regulation of seed germination in Zostera marina L. (eelgrass) in Chesapeake Bay: effects of light, oxygen and sediment burial. Aquatic Botany 45: 79–91.

    Article  Google Scholar 

  • Nepf, H.M. 1999. Drag, turbulence, and diffusion in flow through emergent vegetation. Water Resources Research 35(2): 479–489.

    Article  Google Scholar 

  • Nepf, H.M. 2012. Flow and transport in regions with aquatic vegetation. Annual Review of Fluid Mechanics 44: 123–142.

    Article  Google Scholar 

  • Nepf, H.M., J.A. Sullivan, and R.A. Zavistoski. 1997. A model for diffusion within emergent vegetation. Limnology and Oceanography 42(8): 1735–1745.

    Article  Google Scholar 

  • Nepf, H., M. Ghisalberti, B. White, and E. Murphy. 2007. Retention time and dispersion associated with submerged aquatic canopies. Water Resources Research 43: W04422. doi:10.1029/ 2006WR005362.

    Article  Google Scholar 

  • Orth, R.J., and K.J. McGlathery. 2012. Eelgrass recovery in the coastal bays of the Virginia Coast Reserve, USA. Marine Ecology Progress Series 448: 173–176.

    Article  Google Scholar 

  • Orth, R.J., M.L. Luckenbach, S.R. Marion, K.A. Moore, and D.J. Wilcox. 2006. Seagrass recovery in the Delmarva Coastal Bays, USA. Aquatic Botany 84: 26–36.

    Article  Google Scholar 

  • Orth, R.J., K.A. Moore, S.R. Marion, D. Wilcox, and D. Parrish. 2012. Seed addition facilitates Zostera marina L. (eelgrass) recovery in a coastal bay system (USA). Marine Ecology Progress Series 448: 177–195.

    Article  Google Scholar 

  • Peterson, C.H., R.A. Luettich Jr., M. Fiorenza, and G.A. Skilleter. 2004. Attenuation of water flow inside seagrass canopies of differing structure. Marine Ecology Progress Series 268: 81–92.

    Article  Google Scholar 

  • Raupach, M.R., J.J. Finnigan, and Y. Brunet. 1996. Coherent eddies and turbulence in vegetation canopies: the mixing-layer analogy. Boundary-Layer Meteorology 78: 351–382.

    Google Scholar 

  • Sand-Jensen, K. 2008. Drag forces on common plant species in temperate streams: consequences of morphology, velocity and biomass. Hydrobiologia 610(1): 307–319.

    Article  Google Scholar 

  • Stapleton, K.R., and D.A. Huntley. 1995. Seabed stress determinations using the inertial dissipation method and the turbulent kinetic energy method. Earth Surface Processes and Landforms 20: 807–815.

    Article  Google Scholar 

  • Trowbridge, J.H. 1998. On a technique for measurement of turbulent shear stress in the presence of surface waves. Journal of Atmospheric and Oceanic Technology 15: 290–298.

    Article  Google Scholar 

  • Verduin, J.J., and J.O. Backhaus. 2000. Dynamics of plant–flow interactions for the seagrass Amphibolis antarctica: field observations and model simulations. Estuarine, Coastal and Shelf Science 50: 185–204.

    Article  Google Scholar 

  • Vogel, S. 1981. Life in moving fluids. Boston: Grant.

    Google Scholar 

  • Ward, L.G., W.M. Kemp, and W.R. Boynton. 1984. The influence of waves and seagrass communities on suspended particulates in an estuarine embayment. Marine Geology 59: 85–103.

    Article  Google Scholar 

  • Wiberg, P.L., and C.R. Sherwood. 2008. Calculating wave-generated bottom orbital velocities from surface-wave parameters. Computer and Geosciences 34: 1243–1262.

    Article  Google Scholar 

  • Wiberg, P.L., and J.D. Smith. 1983. A comparison of field data and theoretical models for wave current interactions at the bed on the continental shelf. Continental Shelf Research 2: 147–162.

    Article  Google Scholar 

  • Widdows, J., N.D. Pope, M.D. Brinsley, H. Asmus, and R.M. Asmus. 2008. Effects of seagrass beds (Zostera noltii and Z. marina) on near-bed hydrodynamics and sediment resuspension. Marine Ecology Progress Series 358: 125–136.

    Article  Google Scholar 

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Acknowledgments

We thank A. Schwarzschild, C. Buck, B. Rodgers, and D. Boyd for field assistance, and J. Bricker for helpful discussions regarding wave–turbulence decomposition. This research was funded by the National Science Foundation (NSF-DEB 0621014, BSR-8702333-06, DEB-9211772, DEB-94118974, and DEB-0080381) to the Virginia Coast Reserve Long-Term Ecological Research program and by NSF-OCE 1151314. J.C.R. Hansen was supported through an NSF graduate research fellowship (DGE-0809128).

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  1. Department of Environmental Sciences, University of Virginia, Charlottesville, VA, 22904, USA

    Jennifer C. R. Hansen & Matthew A. Reidenbach

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  1. Jennifer C. R. Hansen
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Correspondence to Jennifer C. R. Hansen.

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Hansen, J.C.R., Reidenbach, M.A. Seasonal Growth and Senescence of a Zostera marina Seagrass Meadow Alters Wave-Dominated Flow and Sediment Suspension Within a Coastal Bay. Estuaries and Coasts 36, 1099–1114 (2013). https://doi.org/10.1007/s12237-013-9620-5

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